ChemGrid

CHEMGRID MOLECULE CARD

E-64

E-64 in ChemGrid: 24 screened assays, 0 with significant responses. Explore chemical identifiers, strain activity and target evidence.

LOPAC 00883

Explore activity & SONAR
Chemical structure of E-64
Stored molecular structure
24Screened assays
0Significant assay responses
1Source-labelled target records

Identity and chemistry

ChemGrid identifier
LOPAC 00883
Molecular formula
C15H27N5O5
InChIKey
LTLYEAJONXGNFG-UHFFFAOYSA-N
Libraries
Lopac
Other recorded names
3-[[1-[4-(Diaminomethylideneamino)butylamino]-4-methyl-1-oxopentan-2-yl]carbamoyl]oxirane-2-carboxylic acid
Stored SMILESCC(C)CC(NC(=O)C1OC1C(O)=O)C(=O)NCCCCNC(N)=N

Matched external records: PubChem 4641099

Chemical identifiers and library names are reproduced from ChemGrid records. Missing values are omitted.

Measured chemical–genetic activity

24 measurements across 24 distinct library–species–strain assays; 0 assays have at least one significant response (|Z| ≥ 4, p ≤ 0.001, excluding flagged outliers).

Responses are indirect screening phenotypes. They do not establish that a strain gene is a direct molecular target. Strains and timepoints are retained as recorded; these counts are not counts of unique ORFs.

Recorded target evidence and yeast matches

Source annotations are shown separately from SONAR hypotheses. Evidence type and identity matching can vary; consult the linked source and interactive evidence panel.

TargetSourceYeast ORF / orthologue
Cysteine proteaseChemGrid bioactivity_infoNo stored yeast mapping

Structural activity predictions and SONAR

Stored structural activity predictions are available in the interactive profile, with assay-specific cutoffs and applicability-domain assessments.

SONAR ranks candidate targets through genetic and physical interaction evidence. Structural SONAR uses predicted strain responses; measured SONAR uses experimental responses. These are experimental hypotheses, not confirmed binding targets. Outside-domain predictions are treated as unknown.

Open the complete E-64 research profile →

Sources and provenance

Screening measurements: ChemGrid chemical-genetic datasets. Wildenhain et al., Cell Systems (2015). Target annotations: sources named in the evidence table. Structure and library metadata: stored ChemGrid catalogue records.

Card snapshot: 2026-11-02. Linked interactive views may contain newer data.